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authorUlrich Drepper <drepper@redhat.com>1998-03-20 12:06:55 +0000
committerUlrich Drepper <drepper@redhat.com>1998-03-20 12:06:55 +0000
commit89a9e37b7a7a2134cedb6d27db265a8ab774f9d1 (patch)
tree19131b4a9aa63f7737c683a57a00b1b37bf7b701 /dirent/scandir64.c
parent9c1a1da9866c22c1626f2222cf5d03ef1b0ede3b (diff)
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Update.
1998-03-20 11:58 Ulrich Drepper <drepper@cygnus.com> * dirent/Makefile (routines): Add scandir64, alphasort64, and versionsort64. * dirent/alphasort64.c: New file. * dirent/scandir64.c: New file. * dirent/versionsort64.c: New file. * dirent/dirent.h: Add LFS support for scandir, alphasort, and versionsort. * sysdeps/generic/readdir64.c: Rename to __readdir64 and make old name weak alias. * sysdeps/unix/sysv/linux/readdir64.c: Likewise. * dirent/alphasort.c: Use strcoll instead of strcmp. * dirent/scandir.c: Optimize a bit. * dirent/versionsort.c: Pretty print. 1998-03-20 Ulrich Drepper <drepper@cygnus.com> * string/string.h: Add prototype for __strtok_r.
Diffstat (limited to 'dirent/scandir64.c')
-rw-r--r--dirent/scandir64.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/dirent/scandir64.c b/dirent/scandir64.c
new file mode 100644
index 0000000000..a0b7406aac
--- /dev/null
+++ b/dirent/scandir64.c
@@ -0,0 +1,93 @@
+/* Copyright (C) 1992, 93, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <dirent.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+int
+scandir64 (dir, namelist, select, cmp)
+ const char *dir;
+ struct dirent64 ***namelist;
+ int (*select) __P ((const struct dirent64 *));
+ int (*cmp) __P ((const void *, const void *));
+{
+ DIR *dp = opendir (dir);
+ struct dirent64 **v = NULL;
+ size_t vsize = 0, i;
+ struct dirent64 *d;
+ int save;
+
+ if (dp == NULL)
+ return -1;
+
+ save = errno;
+ __set_errno (0);
+
+ i = 0;
+ while ((d = __readdir64 (dp)) != NULL)
+ if (select == NULL || (*select) (d))
+ {
+ struct dirent64 *vnew;
+ size_t dsize;
+
+ /* Ignore errors from select or readdir */
+ __set_errno (0);
+
+ if (i == vsize)
+ {
+ struct dirent64 **new;
+ if (vsize == 0)
+ vsize = 10;
+ else
+ vsize *= 2;
+ new = (struct dirent64 **) realloc (v, vsize * sizeof (*v));
+ if (new == NULL)
+ break;
+ v = new;
+ }
+
+ dsize = &d->d_name[_D_ALLOC_NAMLEN (d)] - (char *) d;
+ vnew = (struct dirent64 *) malloc (dsize);
+ if (vnew == NULL)
+ break;
+
+ v[i++] = (struct dirent64 *) memcpy (vnew, d, dsize);
+ }
+
+ if (errno != 0)
+ {
+ save = errno;
+ (void) closedir (dp);
+ while (i > 0)
+ free (v[--i]);
+ free (v);
+ __set_errno (save);
+ return -1;
+ }
+
+ (void) closedir (dp);
+ __set_errno (save);
+
+ /* Sort the list if we have a comparison function to sort with. */
+ if (cmp != NULL)
+ qsort (v, i, sizeof (*v), cmp);
+ *namelist = v;
+ return i;
+}